“Spin-Torque Ferromagnetic Resonance Induced by the Spin Hall Effect,” Luqiao Liu, Takahiro Moriyama, D. C. Ralph, and R. A. Buhrman, Phys. Rev. Lett. 106, 036601 (2011).https://doi.org/10.1103/PhysRevLett.106.036601
“Strong perpendicular magnetic anisotropy energy density at Fe alloy/HfO2 interfaces.” Y.Ou, D. C. Ralph, R. A. Buhrman, Applied Physics Letters 110, 192403, (2017). http://dx.doi.org/10.1063/1.4983170
“Current-induced switching of perpendicularly-magnetized magnetic layers using spin torque from the spin Hall effect.” L. Q. Liu, O. J. Lee, T. J. Gudmundsen, D. C. Ralph and R. A. Buhrman. Phys. Rev. Lett. 109, 096602 (2012). https://doi.org/10.1103/PhysRevLett.109.096602